Question: Does the art museum catch fire from the lava even though they tried to stop it by putting a bus against it?
Question: Near the end, how the heck did Tommy (the child) pass through the kitchen without being noticed by the cooks?
Chosen answer: They were in a rush, trying to get things and get out.
Question: How could Stan and the train driver still be alive in such extreme heat and with lava just underneath them? Shouldn't it destroy their lungs? Shouldn't they get incinerated by the extreme heat of magma?
Answer: Yes, the chances of surviving those circumstances is completely impossible. Not just the heat, but also toxic fumes which will incapacitate you very quickly. At one point the soles of his shoes were melting, at that point you would have been dead. It's a heroic scene, but not very believable.
Answer: Lava is extremely hot. It heats the air above and around it to such a degree that it can reach the flash point of various items.
Greg Dwyer